The hunt leads Krycek and Mulder to Tunguska, where they are held captive until Krycek maneuvers his own release.
The reader is taken all over the globe, visiting Africa's Great Rift Valley, the top of Mount Everest, Tunguska, an ancient Chinese tomb, and even into space as the events of the series unfold, eventually leading up to what will bring about World War III.
Mississippi River | River Thames | Amazon River | Columbia River | Hudson River | Colorado River | Potomac River | river | Ohio River | Missouri River | Delaware River | Murray River | River Tyne | Madeira River | Volga River | River Nene | River Clyde | River Trent | River Severn | Amur River | River Wear | Allegheny River | Red River | Dnieper River | Yarra River | Paraná River | River Tees | Fraser River | Yangtze River | Tocantins River |